Alternative to PDP-121P: Better-Value Equivalents in Stock
Comparing the PDP-121P (PDP-121P - HP 220-Watts ATX Power Supply for Evo D310 510) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the PDP-121P
| SKU | PDP-121P |
|---|---|
| Product | PDP-121P - HP 220-Watts ATX Power Supply for Evo D310 510 |
| Current price | $128.95 |
| Stock status | In Stock |
| Detail page | View PDP-121P › |
Alternatives to PDP-121P
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
PDP-124P - HP 185-Watts 120-240V AC Switching Power Supply with PFC for EVO D530 D325 DC5000
SKU: PDP-124P
Price: $182.37
277910-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 and Vectra VL430
SKU: 277910-001
Price: $96.84
277979-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 and Vectra VL430
SKU: 277979-001
Price: $96.84
0950-4351 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction (PFC) for EVO D310/D315/D510,Vectra VL430
SKU: 0950-4351
Price: $174.43
277918-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 Vectra VL430
SKU: 277918-001
Price: $201.50
279086-001 - HP 220-Watts ATX 12V Switching Power Supply with Active Power Factor Correction for EVO D310 D315 D510 Vectra VL430
SKU: 279086-001
Price: $356.54
249855-001 - HP 50-Watts ATX Power Supply for EVO D500/ 510 Ultra Slim Desktop System
SKU: 249855-001
Price: $82.42
HP-Q220PC3P - HP 220-Watts 100-127V / 200-240V ATX Power Supply for EVO D310 D315 D510 / Vectra VL430
SKU: HP-Q220PC3P
Price: $128.95
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.